Question

_Cuo +H, → _Cu + _H,0

Answer 1

CuO(s) + H₂(g) → Cu(s) + H₂O(l)

Step-by-step explanation:

• Assuming the reaction is the reduction of CuO by H₂
• Then the balanced equation for the reaction is;

CuO(s) + H₂(g) → Cu(s) + H₂O(l)

• The equation shows the reducing property of hydrogen gas, such that hydrogen reduces metal oxides such as copper(ii)oxide to the respective metals.
• The law of conservation requires chemical equations to be balanced so as the mass of reactants will be equal to that of products.

• In this case; there is 1 copper atom, 1 oxygen atom and 2 hydrogen atoms on both side of the equation and thus the equation is balanced.